2006 Polaris FST Touring Owners Manual - Page 112
2006 Polaris FST Touring Manual
Page 112 highlights
Cooling System MAINTENANCE Bleeding the Cooling System 8. With the engine idling, and while making sure that the level in the filler neck remains visible, observe the bleed return. If the system is self-bleeding properly, coolant will be pumped out of this hole. NOTE: Coolant flow may be erratic (spitting, misting) for the first few minutes of bleeding, but as long as the procedure is followed and coolant is visible in the filler neck, the system should bleed properly. 9. While observing the bleed return and making sure the coolant level is visible in the filler neck, observe the engine temperature in the digital display. The temperature should rise steadily, indicating that the system is bleeding properly. 10. If the temperature does not rise after approximately one (1) minute, repeat steps 8 and 9. Make sure steps 8 and 9 are followed precisely during the entire bleed procedure. 11. While the engine temperature is rising, allow the engine to idle until the temperature reaches approximately 220° F (104° C). Do not stop the engine at this step. 12. Feel the coolers at the rear of the snowmobile (rear cooler, de-icers, grippers, as equipped). These components should be warm to the touch, indicating the thermostat is open and the entire cooling system is bleeding. If coolant is still flowing from the bleed return and there is coolant in the filler neck, the system has been bled properly. Do not stop the engine at this step. 13. Reinstall the coolant pressure cap while the engine is idling. NOTE: If the engine is stopped before the cap is installed, a large amount of coolant will flow out of the filler neck and the entire bleed procedure will have to be performed again. 14. Stop the engine. 15. Remove the coolant overflow tank cap. Add coolant to the "COLD FILL" mark on the tank. Reinstall the cap. 109